Answer: a. 14516 in Hexadecimal number system and we want to
translate it into Decimal.

14516
= 1*16^2+4*16^1+5*16^0

= 256+64

3 Simplify f (a, b, c, d) = Σm(0,
2, 4, 6, 7, 8, 9, 11, 12, 14)

Answer: The
given function is:

f(a.b.c.d)=
∑m(0,2,4, 6,7,8,9,11,12,14)

This
is a four variable function so the k map will be look like this:

Assignment Set
-2

1 Explain the working of 4 bit
Johnson counter with the help of neat diagram.

Answer: A Johnson
counter is constructed using serial-in and serial-out (SISO) shift register.
The output of the shift register is connected back to the input after passing
it through an inverter. Depending on

Q2.
Explain the working of MODEM

Answer:

As we know that the computers can’t understand our language.
Computers understand the language of 0’s and 1’s i.e. digital form. The modem
will modulate the signal into a sine wave. So, this modulated digital signal
can easily run over the telephone lines. Then the signal will reach the IP hub.
After this the demodulation of the signal will take place into digital form.
Then you will be connected to the

3 Write a short note on J-K
Master Slave Flip-Flop.

Answer: J-K Master Slave
Flip Flop

The
logic symbol for the master-slave flip-flop only indicates the initial inputs to
the master and the outputs from the slave as indicated by the J-K master slave flip-fl